[ephys]

This PR:

• Documents the new CLI (feat(core): Drop the ability to specify the dialect as a string sequelize#18204), including the breaking changes
• Redoes the documentation of queryInterface, as it was pretty outdated and is important for the migration docs
• Moves around the content of the resource page, as most links there were not working anymore

[github-actions]

🚀 Website draft URL
📋 Deployment logs

[wikirik-agent]

I've split this PR in two:

• The CLI page and the "The CLI has been completely rewritten" upgrade-guide section moved to docs: rewrite the CLI page for @sequelize/cli #851 (draft), with your commit kept as-is and a follow-up commit fixing a few details that don't match the current CLI. That page will keep changing while the CLI is completed for v7 (see fix(cli): sort migrations chronologically regardless of their timestamp format sequelize#18587 and feat(cli): add a timestampFormat option for generated file names sequelize#18588), so it's better reviewed separately.
• This PR now only contains the query interface rewrite, the resources cleanup and the migrations-link fix (commit 0886f5f removes the CLI changes from this branch). None of these depend on the CLI work, so they can be reviewed and merged on their own.

I've also updated the title to match the new scope.

[github-actions]

🚀 Website draft URL
📋 Deployment logs